The impact of heatwaves on mortality and emergency hospital admissions from non-external causes in Brisbane, Australia
The impact of heatwaves on mortality and emergency hospital admissions from non-external causes in Brisbane, Australia
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DOI：
10.1136/oem.2010.062141
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发表时间：
2012-03-01
影响因子：
4.9
通讯作者：
Tong, Shilu
中科院分区：
文献类型：
--
作者：
Wang, Xiao Yu;Barnett, Adrian Gerard;Tong, Shilu
目的热浪可对健康造成严重后果，导致死亡率和发病率增加。然而，它们对生活在热带/亚热带地区的人们的影响在很大程度上仍然未知。本研究评估了热浪对死亡率和急诊入院（EHAs）的影响，从非外部原因（NEC）在布里斯班，亚热带城市在Australia.Methods我们每天获得的数据，天气，空气污染和EHAs的患者年龄在15岁及以上的布里斯班之间的1996年1月和2005年12月，1996年1月和2004年11月之间的死亡率。采用了当地得出的热浪定义（连续2天或更多天的日最高温度>= 37摄氏度）。病例交叉分析被用来评估热浪对死因特异性死亡率和EHA的影响。结果热浪期间，NEC死亡率在统计学上显著增加（OR 1.46; 95% CI 1.21 - 1.77），心血管死亡率（OR 1.89; 95% CI 1.44 - 2.48），75岁以上人群的糖尿病死亡率（OR 9.96; 95% CI 1.02 - 96.85）、NEC EHA（OR 1.15; 95% CI 1.07 - 1.23）和肾脏疾病EHA（OR 1.41; 95% CI 1.09 - 1.83）。老年人被发现是特别容易受到热浪（例如，NEC EHAs，OR 1.24为65-74岁的人和1.39为75岁以上的人）。结论NEC死亡率和EHAs显着增加，观察热浪期间在布里斯班，人们已经习惯了炎热的夏季天气。最脆弱的是老年人和患有心血管、肾脏或糖尿病的人。
Objectives Heatwaves can have significant health consequences resulting in increased mortality and morbidity. However, their impact on people living in tropical/subtropical regions remains largely unknown. This study assessed the impact of heatwaves on mortality and emergency hospital admissions (EHAs) from non-external causes (NEC) in Brisbane, a subtropical city in Australia.Methods We acquired daily data on weather, air pollution and EHAs for patients aged 15 years and over in Brisbane between January 1996 and December 2005, and on mortality between January 1996 and November 2004. A locally derived definition of heatwave (daily maximum >= 37 degrees C for 2 or more consecutive days) was adopted. Case-crossover analyses were used to assess the impact of heatwaves on cause-specific mortality and EHAs.Results During heatwaves, there was a statistically significant increase in NEC mortality (OR 1.46; 95% CI 1.21 to 1.77), cardiovascular mortality (OR 1.89; 95% CI 1.44 to 2.48), diabetes mortality in those aged 75+ (OR 9.96; 95% CI 1.02 to 96.85), NEC EHAs (OR 1.15; 95% CI 1.07 to 1.23) and EHAs from renal diseases (OR 1.41; 95% CI 1.09 to 1.83). The elderly were found to be particularly vulnerable to heatwaves (eg, for NEC EHAs, OR 1.24 for 65-74-year-olds and 1.39 for those aged 75+).Conclusions Significant increases in NEC mortality and EHAs were observed during heatwaves in Brisbane where people are well accustomed to hot summer weather. The most vulnerable were the elderly and people with cardiovascular, renal or diabetic disease.